Method and apparatus for transmitting synchronization signal
AssigneeHuawei Technologies Co., Ltd.
InventorsDeping Liu, Qiang Li, Fredrik Berggren
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Abstract
Embodiments of the present invention disclose a method and an apparatus for transmitting a synchronization signal. The method of the present invention includes: determining, by a first terminal, a D2D type, where the D2D type includes D2D discovery and D2D communication; and transmitting, by the first terminal, a synchronization signal according to the determined D2D type. Therefore, synchronization signals transmitted by terminals of different D2D types do not affect each other, avoiding that a second terminal detects and receives a synchronization signal that does not correspond to a D2D type of the second terminal and ensuring that user direct-connection communication can be performed correctly and efficiently.
Claims22
A method for transmitting a synchronization signal, comprising:
- determining, by a first terminal, a device to device (D2D) type, wherein the D2D type comprises D2D discovery and D2D communication;
- and
- transmitting, by the first terminal, a synchronization signal according to the determined D2D type.
A method for receiving a synchronization signal, comprising:
- determining, by a second terminal, a device to device (D2D) type, wherein the D2D type comprises D2D discovery and D2D communication;
- and
- detecting and receiving, by the second terminal, a synchronization signal according to the determined D2D type.
An apparatus for transmitting a synchronization signal, comprising:
- a processor, configured to determine a device to device (D2D) type, wherein the D2D type comprises D2D discovery and D2D communication;
- and
- a transmitter, configured to transmit a synchronization signal according to the D2D type determined by the processing module.
An apparatus for receiving a synchronization signal, comprising:
- a processor, configured to determine a device to device (D2D) type, wherein the D2D type comprises D2D discovery and D2D communication;
- and
- a receiver, configured to detect and receive a synchronization signal according to the D2D type determined by the processing module.
A non-transitory computer readable storage medium, comprising computer program codes which when executed by a computer processor cause the compute processor to execute the steps of:
- determining a device to device (D2D) type, wherein the D2D type comprises D2D discovery and D2D communication;
- and
- instructing a transmitter to transmit, a physical D2D synchronization channel (PD2DSCH) if the first terminal is of type D2D communication, not transmitting a PD2DSCH if the first terminal is of type D2D discovery.
A non-transitory computer readable storage medium, comprising computer program codes which when executed by a computer processor cause the compute processor to execute the steps of:
- determining a device to device (D2D) type, wherein the D2D type comprises D2D discovery and D2D communication;
- and
- instructing a receiver to detect and receive, a physical D2D synchronization channel (PD2DSCH) if the second terminal is of type D2D communication;
- detecting no PD2DSCH if the second terminal of type D2D discovery.
Dependencies are inferred from the claim text.